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Working configuration to build products, plug-ins and features together [message #1841086]

Mon, 03 May 2021 12:51

Hannes Wellmann

Messages: 1
Registered: April 2021

Junior Member

The documentation of JustJ says that products that use a JustJ JRE feature cannot build together with features and plug-ins using Maven/Tycho.

Therefore I want to report that since Tycho 2.3.0 the following configuration in the pom.xml works perfectly fine in the mentioned scenario:

<plugin>
    <groupId>org.eclipse.tycho</groupId>
    <artifactId>target-platform-configuration</artifactId>
    <version>${tycho-version}</version>
    <configuration>
        <executionEnvironment>org.eclipse.justj.openjdk.hotspot.jre.full-11</executionEnvironment>
    </configuration>
</plugin>

Note that it is important to specify the executionEnvironment.
Specifying the executionEnvironmentDefault is not sufficient since that value is overwritten with the Bundle-RequiredExecutionEnvironment specified in a bundle's MANIFEST.MF.
For details in Tycho see org.eclipse.tycho.core.ee.ExecutionEnvironmentConfigurationImpl and org.eclipse.tycho.core.osgitools.AbstractTychoProject#readExecutionEnvironmentConfiguration(ReactorProject, MavenSession,ExecutionEnvironmentConfiguration)

I've verified only the mentioned configuration, but from what I've seen in Tycho's sources I expect building only products and features to work too.
If nothing else speaks against it I suggest to update the JustJ documentation and example product to primary use the mentioned configuration and keep the other ones only for those that cannot use Tycho 2.3.0.

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